253 void *trace_event_buffer_reserve(struct trace_event_buffer *fbuffer,  in trace_event_buffer_reserve()  argument
263 	local_save_flags(fbuffer->flags);  in trace_event_buffer_reserve()
264 	fbuffer->pc = preempt_count();  in trace_event_buffer_reserve()
272 		fbuffer->pc--;  in trace_event_buffer_reserve()
273 	fbuffer->trace_file = trace_file;  in trace_event_buffer_reserve()
275 	fbuffer->event =  in trace_event_buffer_reserve()
276 		trace_event_buffer_lock_reserve(&fbuffer->buffer, trace_file,  in trace_event_buffer_reserve()
278 						fbuffer->flags, fbuffer->pc);  in trace_event_buffer_reserve()
279 	if (!fbuffer->event)  in trace_event_buffer_reserve()
282 	fbuffer->entry = ring_buffer_event_data(fbuffer->event);  in trace_event_buffer_reserve()
283 	return fbuffer->entry;  in trace_event_buffer_reserve()